Custom Question Answering Elevation of Privilege Vulnerability in Microsoft Products
CVE-2025-64663

9.9CRITICAL

Key Information:

Vendor

Microsoft
Status
Azure Cognitive Service For Language
Vendor
CVE Published:
18 December 2025

What is CVE-2025-64663?

A vulnerability has been identified in the Custom Question Answering feature of Microsoft products that allows attackers to exploit it for elevation of privilege. This can potentially enable unauthorized users to gain access to restricted resources, putting sensitive information at risk.

Affected Version(s)

Azure Cognitive Service for Language Unknown

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-64663 : Custom Question Answering Elevation of Privilege Vulnerability in Microsoft Products